Home / 54,208.20-81,265.52-20,951.60

Finding the Fourth Proportional to 54,208.20, 81,265.52 and 20,951.60

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Solution

The fourth proportional to 54,208.20, 81,265.52 and 20,951.60 is: 31,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,208.20 : 81,265.52 = 20,951.60 : x
  2. Step 2: Convert to fraction form
    54,208.20/81,265.52 = 20,951.60/x
  3. Step 3: Cross multiply
    54,208.20x = 81,265.52 × 20,951.60
  4. Step 4: Simplify right side
    54,208.20x = 1,702,642,668.83
  5. Step 5: Solve for x
    x = 1,702,642,668.83/54,208.20
  6. Step 6: Final answer
    x = 31,409.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.